<ARTICLE> 5 <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-END> DEC-31-1996 <CASH> 20,229,105 <SECURITIES> 0 <RECEIVABLES> 512,079 <ALLOWANCES> 160,571 <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 144,190,311 <DEPRECIATION> 97,860,513 <TOTAL-ASSETS> 67,014,686 <CURRENT-LIABILITIES> 0 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 53,489,164 <TOTAL-LIABILITY-AND-EQUITY> 67,014,686 <SALES> 0 <TOTAL-REVENUES> 17,077,758 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 23,759,090 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 122,197 <INCOME-PRETAX> (6,803,529) <INCOME-TAX> 0 <INCOME-CONTINUING> (6,803,529) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (6,803,529) <EPS-PRIMARY> (17.25) <EPS-DILUTED> 0